18173540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11801}}^1$

素因数の和:11828

約数の個数: 48

約数和(自身を含む): 47585664

約数和(自身を除く): 29412124

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 11801, 23602, 47204, 59005, 82607, 118010, 129811, 165214, 236020, 259622, 330428, 413035, 519244, 649055, 826070, 908677, 1298110, 1652140, 1817354, 2596220, 3634708, 4543385, 9086770, 18173540]

約数ペア:

[(1, 18173540), (2, 9086770), (4, 4543385), (5, 3634708), (7, 2596220), (10, 1817354), (11, 1652140), (14, 1298110), (20, 908677), (22, 826070), (28, 649055), (35, 519244), (44, 413035), (55, 330428), (70, 259622), (77, 236020), (110, 165214), (140, 129811), (154, 118010), (220, 82607), (308, 59005), (385, 47204), (770, 23602), (1540, 11801)]